Cervical intranodal schwannoma - a rare diagnosis.

Intranodal schwannoma is a rare benign tumor, which originates from the peripheral nerve sheath (Schwann cells), fewer cases being reported with lymphatic involvement. We present the case of a middle-aged female patient, with one-year growing mass in the lateral-cervical area, in intimate relation with the vascular package of the neck. Preoperative cervical computed tomography examination showed the tumor features. There was no intraoperative complication, with the piece being completely removed. The morphological examination revealed the structure of a lymph node, and after Hematoxylin-Eosin staining, there were eosinophilic cytoplasm, euchromatic nuclei, with round, elongated or slightly wavy form and reduced pleomorphism, rare degenerative nuclear atypia, and no mitotic activity nor necrosis. The expression of S100 protein on immunohistochemistry, along with negative results for smooth muscle actin and desmin sustained the diagnosis of intranodal schwannoma of the neck. With a low index of cellular proliferation (Ki67), this case is in line with the reported features of schwannoma having extremely rare malignant transformation.

[Genetic implications and therapeutic possibilities in the course of hereditary macular pathology and vitreoretinopathies]. / Implicatii genetice si posibilitati terapeutice în heredoipatii maculare evolutive si vitreoretinopati.

There are many hereditary diseases in ophthalmology including retinal dystrophies--diseases of great heterogeneity requiring genetic determination, individual or in entire family.

[Posttraumatic hyphema with secondary glaucoma]. / Hifema postcontuziva cu glaucom secundar.

The authors present in detail (symptoms, signs, predisposing factors, complications, treatment) one of the most common signs seen in the eyeball contusion--traumatic hiphema. There are presented concepts for proper treatment of hiphema with secondary glaucoma and for relapsing hiphema.

[Effect of hemodialysis in retinal circulations]. / Impactul sedintei de hemodializa asupra circulatiei retiniene.

In patients with chronic renal failure undergoing hemodialysis were recorded and studied by various authors multiple eye damage with time. Studying the literature we conducted a study to assess the impact of intradialitic-interdialitic and postdialitic volemic game above the retinal circulation. By measuring diameters of retinal circulation after processing the digital fundus, we found that, 30 minutes after hemodialysis session takes a degree of dilatation of retinal vessels, permanent vascular insult that can be responsible for stroke and ischamic eye and coronary diseases of these patients.

[The impact of hemodialysis on retinal circulation]. / Impactul sedintei de hemodializa asopra circulatiei retiniene.

In patients with chronic renal failure undergoing hemodialysis were recorded and studied by various authors multiple eye damage with time. Studying the literature we conducted a study to assess the impact of intradialitic-interdialitic and postdialitic volemic game above the retinal circulation. By measuring diameters of retinal circulation after processing the digital fundus, we found that, 30 minutes after hemodialysis session takes a degree of dilatation of retinal vessels, permanent vascular insult that can be responsible for stroke and ischamic eye and coronary diseases of these patients.

[The role of ultrasonography exam in orbital-ocular tumors]. / Rolul examenului ecografic în cazul tumorilor oculoorbitare.

Ophthalmology is one of the specialties that have particularly benefited from the contribution of ultrasonography exam as a method of investigation. Ultrasonography is very much essential for diagnostic to complement other clinical and laboratory investigations, providing images in real time. The basic principle of diagnostic ultrasound is to study and to interpret the changes they undergo when crossing ultrasonic waves diverse biological properties different sound, and such injuries can be traced in the dynamics or can be documented on photographic paper and thus can diagnose correct certain eye diseases. The indications for performing ultrasound consist in: measurement of distances and volumes, examine difficult or inaccessible case of opaque media; ophthalmoscopic view of a mass lesion, examine the orbit or optic nerve. The advantages of ultrasound for orbital-ocular tumors are represented by the fact that ultrasound is a noninvasive method, safe, well tolerated, less expensive that the advantage of determining the position and distance from structures ocular tumor. High frequency ultrasound provides excellent resolution of 0-1 to 0.01 mm, and serial scans allow tracking progress and measuring lesion diameters tumor while allowing monitoring and evaluation of stereotactic radiation treatments applied to small tumors. In conclusion ultrasound allows not only early diagnosis of eye tumors, but accurate assessment of the proposed therapy and of the evolution of detected mass lesions or tumors.

[The effects of changes in phosphocalcic metabolism in ocular tissues in patients with chronic hemodialysis]. / Rasunetul tulburarilor metabolismului fosfocalcic asupra tesuturilor oculare la hemodializatii cronic.

Extraskeletal calcification is a common complication of chronic renal failure. It is well known that in dialysis patients the elevated calcium phosphate product is associated with the development of corneal and conjunctival calcification, but there is no association between the degree of the calcifications and the levels of calcium phosphate product. This paper is supposed to present briefly the main hypothesis who explain the mechanism that generates the deposition of the calcium salts to the anterior segment of the globe.